Ian McKellen

New on DVD: 'I Saw the Light,' 'House of Cards' top DVD releases out July 5

Music that will get your foot tapping and political drama that proves to be a game of musical chairs top this week's DVD picks.

"I Saw the Light"; 2 stars: Tom Hiddleston, best known for his wicked portrayal of Loki in the "Thor" movies, takes on singing duties as part of his performance as Hank Williams in "I Saw the Light." He gets points for trying to mimic the singer's unique style, but the movie is so weak on story that the musical performances cannot hide its flaws.

The most sour notes in "I Saw the Light" come from the script by director Marc Abraham. Instead of building a solid foundation of why Williams chased a musical career...